Add the testcase() macro. Additional CSE test coverage. (CVS 4951)

FossilOrigin-Name: 492490f9c86e52c7a706d9e1bf0ba216d5bb8aba
This commit is contained in:
drh 2008-04-01 15:06:33 +00:00
parent b3843a82ea
commit c5499bef4b
6 changed files with 185 additions and 31 deletions

View File

@ -1,5 +1,5 @@
C Fix\sa\sproblem\swith\sCASTs\sand\sthe\snew\sCSE\smechanism.\s(CVS\s4950)
D 2008-04-01T12:24:11
C Add\sthe\stestcase()\smacro.\s\sAdditional\sCSE\stest\scoverage.\s(CVS\s4951)
D 2008-04-01T15:06:34
F Makefile.arm-wince-mingw32ce-gcc ac5f7b2cef0cd850d6f755ba6ee4ab961b1fadf7
F Makefile.in b861627d91df5ee422c54237aa38296954dc0151
F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@ -95,7 +95,7 @@ F src/complete.c 4cf68fd75d60257524cbe74f87351b9848399131
F src/date.c e41ce4513fb0e359dc678d6bddb4ace135fe365d
F src/delete.c 74d5c9c824848a14d7dee37264ec302b168c4ddb
F src/experimental.c 1b2d1a6cd62ecc39610e97670332ca073c50792b
F src/expr.c 64843f848a36edf1fe4d95bfd3e7a9090580c4a3
F src/expr.c bc7ab980abcc211083148eeaea571c4511f41238
F src/fault.c 83057e86815d473e526f7df0b0108dfdd022ff23
F src/func.c c9e8c7ff4c45027edee89bde7adbf86a3a3b2afe
F src/hash.c 53655c312280211444bfe23af6490a460aec2980
@ -104,7 +104,7 @@ F src/insert.c 6974a1d02f2dcd616d00eef4996d4872495fad0f
F src/journal.c 807bed7a158979ac8d63953e1774e8d85bff65e2
F src/legacy.c 8267890e6a0a71f13b680794520999c642299081
F src/loadext.c f26b22f7c84153c9d5dbd7c240848823c6e6b6dc
F src/main.c 7d22155e35094bc5d368202c3db8a3fc429548af
F src/main.c b499fa9fa2551d0963404e1b582747ef92754dd0
F src/malloc.c 12c1ae98ef1eff34b13c9eb526e0b7b479e1e820
F src/md5.c c5fdfa5c2593eaee2e32a5ce6c6927c986eaf217
F src/mem1.c fc716ff521b6dd3e43eaa211967383308800e70a
@ -140,7 +140,7 @@ F src/server.c 087b92a39d883e3fa113cae259d64e4c7438bc96
F src/shell.c 22297fffa6f00a6c6d44020fa13b1184a1bb372d
F src/sqlite.h.in b1ac824d9fc163a5d2226ebf5990b09a02a11117
F src/sqlite3ext.h faacd0e6a81aabee0861c6d7883c9172e74ef5b3
F src/sqliteInt.h 1b7ad8791bf441901914734fb1f9735b58adfb37
F src/sqliteInt.h 3b9a1f2338d6b0d4361b1901543c830a45a45637
F src/sqliteLimit.h f435e728c6b620ef7312814d660a81f9356eb5c8
F src/table.c 2c48c575dd59b3a6c5c306bc55f51a9402cf429a
F src/tclsqlite.c 1367762764772a233643524c3585b4711a9adcda
@ -248,7 +248,7 @@ F test/crash5.test c7ddcf7ca83abc19901b977732144234ac72a938
F test/crash6.test 873d851c5ba2a46e0f9974c54e1d4a77d9a587d5
F test/crashtest1.c 09c1c7d728ccf4feb9e481671e29dda5669bbcc2
F test/createtab.test 199cf68f44e5d9e87a0b8afc7130fdeb4def3272
F test/cse.test 36b0079f67f187e4dffe8f3047e04cf10f5f75f9
F test/cse.test cb548fa3000a246c80fde7adaa0ee4bd85cbc5e9
F test/date.test 8db95a0ba2c8f4c8762ce66859a036c51959a6be
F test/default.test 252298e42a680146b1dd64f563b95bdf088d94fb
F test/delete.test 57533e88e886608bf5ae0f394e14c2eb1b1f7754
@ -621,7 +621,7 @@ F www/tclsqlite.tcl 8be95ee6dba05eabcd27a9d91331c803f2ce2130
F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
F www/whentouse.tcl fc46eae081251c3c181bd79c5faef8195d7991a5
P 91cc646e2b0c1d62a1989405cc9384a2c22d98d0
R 0b78187a1b465d3d8c93c57ba92e771e
P e25939fb25ec8bde8500a672ca5be3cbb514ac3a
R 739e5874578bdbb30904d6eb328630e7
U drh
Z ed15e3f8ef7420ee4fecf6ce237f8aee
Z 3436b9a596d9596333afb3b553896141

View File

@ -1 +1 @@
e25939fb25ec8bde8500a672ca5be3cbb514ac3a
492490f9c86e52c7a706d9e1bf0ba216d5bb8aba

View File

@ -12,7 +12,7 @@
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.363 2008/04/01 12:24:11 drh Exp $
** $Id: expr.c,v 1.364 2008/04/01 15:06:34 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@ -428,6 +428,10 @@ void sqlite3ExprAssignVarNumber(Parse *pParse, Expr *pExpr){
** use it as the variable number */
int i;
pExpr->iTable = i = atoi((char*)&pToken->z[1]);
testcase( i==0 );
testcase( i==1 );
testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]-1 );
testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] );
if( i<1 || i>db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ){
sqlite3ErrorMsg(pParse, "variable number must be between ?1 and ?%d",
db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]);
@ -727,6 +731,8 @@ void sqlite3ExprListCheckLength(
const char *zObject
){
int mx = pParse->db->aLimit[SQLITE_LIMIT_COLUMN];
testcase( pEList && pEList->nExpr==mx );
testcase( pEList && pEList->nExpr==mx+1 );
if( pEList && pEList->nExpr>mx ){
sqlite3ErrorMsg(pParse, "too many columns in %s", zObject);
}
@ -909,7 +915,14 @@ static int exprNodeIsConstant(void *pArg, Expr *pExpr){
#ifndef SQLITE_OMIT_SUBQUERY
case TK_SELECT:
case TK_EXISTS:
testcase( pExpr->op==TK_SELECT );
testcase( pExpr->op==TK_EXISTS );
#endif
testcase( pExpr->op==TK_ID );
testcase( pExpr->op==TK_COLUMN );
testcase( pExpr->op==TK_DOT );
testcase( pExpr->op==TK_AGG_FUNCTION );
testcase( pExpr->op==TK_AGG_COLUMN );
*pN = 0;
return 2;
case TK_IN:
@ -1165,6 +1178,8 @@ static int lookupName(
}
pExpr->pTab = pTab;
if( iCol>=0 ){
testcase( iCol==31 );
testcase( iCol==32 );
*piColMask |= ((u32)1<<iCol) | (iCol>=32?0xffffffff:0);
}
break;
@ -1274,6 +1289,7 @@ static int lookupName(
*/
if( pExpr->iColumn>=0 && pMatch!=0 ){
int n = pExpr->iColumn;
testcase( n==sizeof(Bitmask)*8-1 );
if( n>=sizeof(Bitmask)*8 ){
n = sizeof(Bitmask)*8-1;
}
@ -1809,6 +1825,7 @@ void sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){
/* Evaluate the expression and insert it into the temp table */
pParse->disableColCache++;
sqlite3ExprCode(pParse, pE2, r1);
assert( pParse->disableColCache>0 );
pParse->disableColCache--;
sqlite3VdbeAddOp4(v, OP_MakeRecord, r1, 1, r2, &affinity, 1);
sqlite3ExprCacheAffinityChange(pParse, r1, 1);
@ -1982,6 +1999,7 @@ int sqlite3ExprCodeGetColumn(
p->iTable = iTable;
p->iColumn = iColumn;
p->iReg = iReg;
p->affChange = 0;
i++;
if( i>=ArraySize(pParse->aColCache) ) i = 0;
if( i>pParse->nColCache ) pParse->nColCache = i;
@ -1990,15 +2008,6 @@ int sqlite3ExprCodeGetColumn(
return iReg;
}
/*
** Disable (+1) or enable (-1) the adding of new column cache entries.
*/
void sqlite3ExprColumnCacheDisable(Parse *pParse, int disable){
assert( disable==-1 || disable==+1 );
assert( pParse->disableColCache>0 || disable==1 );
pParse->disableColCache += disable;
}
/*
** Clear all column cache entries associated with the vdbe
** cursor with cursor number iTable.
@ -2011,6 +2020,7 @@ void sqlite3ExprClearColumnCache(Parse *pParse, int iTable){
int i;
for(i=0; i<pParse->nColCache; i++){
if( pParse->aColCache[i].iTable==iTable ){
testcase( i==pParse->nColCache-1 );
pParse->aColCache[i] = pParse->aColCache[--pParse->nColCache];
pParse->iColCache = pParse->nColCache;
}
@ -2140,6 +2150,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
assert( pParse->ckBase>0 );
inReg = pExpr->iColumn + pParse->ckBase;
}else{
testcase( (pExpr->flags & EP_AnyAff)!=0 );
inReg = sqlite3ExprCodeGetColumn(pParse, pExpr->pTab,
pExpr->iColumn, pExpr->iTable, target,
pExpr->flags & EP_AnyAff);
@ -2203,7 +2214,13 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
assert( to_op==OP_ToNumeric || aff!=SQLITE_AFF_NUMERIC );
assert( to_op==OP_ToInt || aff!=SQLITE_AFF_INTEGER );
assert( to_op==OP_ToReal || aff!=SQLITE_AFF_REAL );
testcase( to_op==OP_ToText );
testcase( to_op==OP_ToBlob );
testcase( to_op==OP_ToNumeric );
testcase( to_op==OP_ToInt );
testcase( to_op==OP_ToReal );
sqlite3VdbeAddOp1(v, to_op, inReg);
testcase( usedAsColumnCache(pParse, inReg, inReg) );
sqlite3ExprCacheAffinityChange(pParse, inReg, 1);
break;
}
@ -2220,10 +2237,18 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
assert( TK_GE==OP_Ge );
assert( TK_EQ==OP_Eq );
assert( TK_NE==OP_Ne );
testcase( op==TK_LT );
testcase( op==TK_LE );
testcase( op==TK_GT );
testcase( op==TK_GE );
testcase( op==TK_EQ );
testcase( op==TK_NE );
codeCompareOperands(pParse, pExpr->pLeft, &r1, &regFree1,
pExpr->pRight, &r2, &regFree2);
codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
r1, r2, inReg, SQLITE_STOREP2);
testcase( regFree1==0 );
testcase( regFree2==0 );
break;
}
case TK_AND:
@ -2249,9 +2274,22 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
assert( TK_LSHIFT==OP_ShiftLeft );
assert( TK_RSHIFT==OP_ShiftRight );
assert( TK_CONCAT==OP_Concat );
testcase( op==TK_AND );
testcase( op==TK_OR );
testcase( op==TK_PLUS );
testcase( op==TK_MINUS );
testcase( op==TK_REM );
testcase( op==TK_BITAND );
testcase( op==TK_BITOR );
testcase( op==TK_SLASH );
testcase( op==TK_LSHIFT );
testcase( op==TK_RSHIFT );
testcase( op==TK_CONCAT );
r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
sqlite3VdbeAddOp3(v, op, r2, r1, target);
testcase( regFree1==0 );
testcase( regFree2==0 );
break;
}
case TK_UMINUS: {
@ -2269,6 +2307,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
sqlite3VdbeAddOp2(v, OP_Integer, 0, r1);
r2 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree2);
sqlite3VdbeAddOp3(v, OP_Subtract, r2, r1, target);
testcase( regFree2==0 );
}
inReg = target;
break;
@ -2277,7 +2316,11 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
case TK_NOT: {
assert( TK_BITNOT==OP_BitNot );
assert( TK_NOT==OP_Not );
testcase( op==TK_BITNOT );
testcase( op==TK_NOT );
inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
testcase( inReg==target );
testcase( usedAsColumnCache(pParse, inReg, inReg) );
inReg = sqlite3ExprWritableRegister(pParse, inReg, target);
sqlite3VdbeAddOp1(v, op, inReg);
break;
@ -2287,8 +2330,11 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
int addr;
assert( TK_ISNULL==OP_IsNull );
assert( TK_NOTNULL==OP_NotNull );
testcase( op==TK_ISNULL );
testcase( op==TK_NOTNULL );
sqlite3VdbeAddOp2(v, OP_Integer, 1, target);
r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
testcase( regFree1==0 );
addr = sqlite3VdbeAddOp1(v, op, r1);
sqlite3VdbeAddOp2(v, OP_AddImm, target, -1);
sqlite3VdbeJumpHere(v, addr);
@ -2317,6 +2363,8 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
u8 enc = ENC(db);
CollSeq *pColl = 0;
testcase( op==TK_CONST_FUNC );
testcase( op==TK_FUNCTION );
zId = (char*)pExpr->token.z;
nId = pExpr->token.n;
pDef = sqlite3FindFunction(pParse->db, zId, nId, nExpr, enc, 0);
@ -2371,6 +2419,8 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
#ifndef SQLITE_OMIT_SUBQUERY
case TK_EXISTS:
case TK_SELECT: {
testcase( op==TK_EXISTS );
testcase( op==TK_SELECT );
if( pExpr->iColumn==0 ){
sqlite3CodeSubselect(pParse, pExpr);
}
@ -2396,6 +2446,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
** pExpr->iTable contains the values that make up the (...) set.
*/
r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
testcase( regFree1==0 );
j1 = sqlite3VdbeAddOp1(v, OP_NotNull, r1);
sqlite3VdbeAddOp2(v, OP_Null, 0, target);
j2 = sqlite3VdbeAddOp0(v, OP_Goto);
@ -2436,6 +2487,8 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
codeCompareOperands(pParse, pLeft, &r1, &regFree1,
pRight, &r2, &regFree2);
testcase( regFree1==0 );
testcase( regFree2==0 );
r3 = sqlite3GetTempReg(pParse);
r4 = sqlite3GetTempReg(pParse);
codeCompare(pParse, pLeft, pRight, OP_Ge,
@ -2444,6 +2497,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
pRight = pLItem->pExpr;
sqlite3ReleaseTempReg(pParse, regFree2);
r2 = sqlite3ExprCodeTemp(pParse, pRight, &regFree2);
testcase( regFree2==0 );
codeCompare(pParse, pLeft, pRight, OP_Le, r1, r2, r4, SQLITE_STOREP2);
sqlite3VdbeAddOp3(v, OP_And, r3, r4, target);
sqlite3ReleaseTempReg(pParse, r3);
@ -2497,14 +2551,16 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
endLabel = sqlite3VdbeMakeLabel(v);
if( (pX = pExpr->pLeft)!=0 ){
cacheX = *pX;
testcase( pX->op==TK_COLUMN || pX->op==TK_REGISTER );
cacheX.iTable = sqlite3ExprCodeTemp(pParse, pX, &regFree1);
testcase( regFree1==0 );
cacheX.op = TK_REGISTER;
cacheX.iColumn = 0;
opCompare.op = TK_EQ;
opCompare.pLeft = &cacheX;
pTest = &opCompare;
}
sqlite3ExprColumnCacheDisable(pParse, 1);
pParse->disableColCache++;
for(i=0; i<nExpr; i=i+2){
if( pX ){
opCompare.pRight = aListelem[i].pExpr;
@ -2512,7 +2568,10 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
pTest = aListelem[i].pExpr;
}
nextCase = sqlite3VdbeMakeLabel(v);
testcase( pTest->op==TK_COLUMN || pTest->op==TK_REGISTER );
sqlite3ExprIfFalse(pParse, pTest, nextCase, SQLITE_JUMPIFNULL);
testcase( aListelem[i+1].pExpr->op==TK_COLUMN );
testcase( aListelem[i+1].pExpr->op==TK_REGISTER );
sqlite3ExprCode(pParse, aListelem[i+1].pExpr, target);
sqlite3VdbeAddOp2(v, OP_Goto, 0, endLabel);
sqlite3VdbeResolveLabel(v, nextCase);
@ -2523,7 +2582,8 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
sqlite3VdbeAddOp2(v, OP_Null, 0, target);
}
sqlite3VdbeResolveLabel(v, endLabel);
sqlite3ExprColumnCacheDisable(pParse, -1);
assert( pParse->disableColCache>0 );
pParse->disableColCache--;
break;
}
#ifndef SQLITE_OMIT_TRIGGER
@ -2635,7 +2695,7 @@ static int evalConstExpr(void *pArg, Expr *pExpr){
int r1 = ++pParse->nMem;
int r2;
r2 = sqlite3ExprCodeTarget(pParse, pExpr, r1);
if( r1!=r2 ) pParse->nMem--;
if( r1!=r2 ) sqlite3ReleaseTempReg(pParse, r1);
pExpr->iColumn = pExpr->op;
pExpr->op = TK_REGISTER;
pExpr->iTable = r2;
@ -2707,21 +2767,28 @@ void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
switch( op ){
case TK_AND: {
int d2 = sqlite3VdbeMakeLabel(v);
testcase( jumpIfNull==0 );
testcase( pParse->disableColCache==0 );
sqlite3ExprIfFalse(pParse, pExpr->pLeft, d2,jumpIfNull^SQLITE_JUMPIFNULL);
pParse->disableColCache++;
sqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
assert( pParse->disableColCache>0 );
pParse->disableColCache--;
sqlite3VdbeResolveLabel(v, d2);
break;
}
case TK_OR: {
testcase( jumpIfNull==0 );
testcase( pParse->disableColCache==0 );
sqlite3ExprIfTrue(pParse, pExpr->pLeft, dest, jumpIfNull);
pParse->disableColCache++;
sqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
assert( pParse->disableColCache>0 );
pParse->disableColCache--;
break;
}
case TK_NOT: {
testcase( jumpIfNull==0 );
sqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
break;
}
@ -2737,18 +2804,30 @@ void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
assert( TK_GE==OP_Ge );
assert( TK_EQ==OP_Eq );
assert( TK_NE==OP_Ne );
testcase( op==TK_LT );
testcase( op==TK_LE );
testcase( op==TK_GT );
testcase( op==TK_GE );
testcase( op==TK_EQ );
testcase( op==TK_NE );
testcase( jumpIfNull==0 );
codeCompareOperands(pParse, pExpr->pLeft, &r1, &regFree1,
pExpr->pRight, &r2, &regFree2);
codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
r1, r2, dest, jumpIfNull);
testcase( regFree1==0 );
testcase( regFree2==0 );
break;
}
case TK_ISNULL:
case TK_NOTNULL: {
assert( TK_ISNULL==OP_IsNull );
assert( TK_NOTNULL==OP_NotNull );
testcase( op==TK_ISNULL );
testcase( op==TK_NOTNULL );
r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
sqlite3VdbeAddOp2(v, op, r1, dest);
testcase( regFree1==0 );
break;
}
case TK_BETWEEN: {
@ -2777,13 +2856,17 @@ void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
compRight.pLeft = &exprX;
compRight.pRight = pExpr->pList->a[1].pExpr;
exprX.iTable = sqlite3ExprCodeTemp(pParse, &exprX, &regFree1);
testcase( regFree1==0 );
exprX.op = TK_REGISTER;
testcase( jumpIfNull==0 );
sqlite3ExprIfTrue(pParse, &exprAnd, dest, jumpIfNull);
break;
}
default: {
r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
sqlite3VdbeAddOp3(v, OP_If, r1, dest, jumpIfNull!=0);
testcase( regFree1==0 );
testcase( jumpIfNull==0 );
break;
}
}
@ -2843,17 +2926,23 @@ void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
switch( pExpr->op ){
case TK_AND: {
testcase( jumpIfNull==0 );
testcase( pParse->disableColCache==0 );
sqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
pParse->disableColCache++;
sqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
assert( pParse->disableColCache>0 );
pParse->disableColCache--;
break;
}
case TK_OR: {
int d2 = sqlite3VdbeMakeLabel(v);
testcase( jumpIfNull==0 );
testcase( pParse->disableColCache==0 );
sqlite3ExprIfTrue(pParse, pExpr->pLeft, d2, jumpIfNull^SQLITE_JUMPIFNULL);
pParse->disableColCache++;
sqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
assert( pParse->disableColCache>0 );
pParse->disableColCache--;
sqlite3VdbeResolveLabel(v, d2);
break;
@ -2868,16 +2957,28 @@ void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
case TK_GE:
case TK_NE:
case TK_EQ: {
testcase( op==TK_LT );
testcase( op==TK_LE );
testcase( op==TK_GT );
testcase( op==TK_GE );
testcase( op==TK_EQ );
testcase( op==TK_NE );
testcase( jumpIfNull==0 );
codeCompareOperands(pParse, pExpr->pLeft, &r1, &regFree1,
pExpr->pRight, &r2, &regFree2);
codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
r1, r2, dest, jumpIfNull);
testcase( regFree1==0 );
testcase( regFree2==0 );
break;
}
case TK_ISNULL:
case TK_NOTNULL: {
testcase( op==TK_ISNULL );
testcase( op==TK_NOTNULL );
r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
sqlite3VdbeAddOp2(v, op, r1, dest);
testcase( regFree1==0 );
break;
}
case TK_BETWEEN: {
@ -2906,13 +3007,17 @@ void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
compRight.pLeft = &exprX;
compRight.pRight = pExpr->pList->a[1].pExpr;
exprX.iTable = sqlite3ExprCodeTemp(pParse, &exprX, &regFree1);
testcase( regFree1==0 );
exprX.op = TK_REGISTER;
testcase( jumpIfNull==0 );
sqlite3ExprIfFalse(pParse, &exprAnd, dest, jumpIfNull);
break;
}
default: {
r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
sqlite3VdbeAddOp3(v, OP_IfNot, r1, dest, jumpIfNull!=0);
testcase( regFree1==0 );
testcase( jumpIfNull==0 );
break;
}
}
@ -3187,7 +3292,6 @@ int sqlite3GetTempReg(Parse *pParse){
}
void sqlite3ReleaseTempReg(Parse *pParse, int iReg){
if( iReg && pParse->nTempReg<ArraySize(pParse->aTempReg) ){
assert( iReg>0 );
pParse->aTempReg[pParse->nTempReg++] = iReg;
}
}

View File

@ -14,7 +14,7 @@
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.429 2008/03/21 16:45:47 drh Exp $
** $Id: main.c,v 1.430 2008/04/01 15:06:34 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@ -47,6 +47,16 @@ void (*sqlite3IoTrace)(const char*, ...) = 0;
*/
char *sqlite3_temp_directory = 0;
/*
** Routine needed to support the testcase() macro.
*/
#ifdef SQLITE_COVERAGE_TEST
void sqlite3Coverage(int x){
static int dummy = 0;
dummy += x;
}
#endif
/*
** Return true if the buffer z[0..n-1] contains all spaces.

View File

@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.686 2008/04/01 05:07:15 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.687 2008/04/01 15:06:34 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@ -48,6 +48,20 @@
typedef int sqlite3_intptr_t;
#endif
/*
** A macro used to aid in coverage testing. When doing coverage
** testing, the condition inside the argument must be evaluated
** both true and false in order to get full branch coverage.
** This macro can be inserted to ensure adequate test coverage
** in places where simple condition/decision coverage is inadequate.
*/
#ifdef SQLITE_COVERAGE_TEST
void sqlite3Coverage(int);
# define testcase(X) if( X ){ sqlite3Coverage(__LINE__); }
#else
# define testcase(X)
#endif
/*
** The macro unlikely() is a hint that surrounds a boolean
@ -1841,7 +1855,6 @@ void sqlite3WhereEnd(WhereInfo*);
int sqlite3ExprCodeGetColumn(Parse*, Table*, int, int, int, int);
void sqlite3ExprCodeMove(Parse*, int, int);
void sqlite3ExprClearColumnCache(Parse*, int);
void sqlite3ExprColumnCacheDisable(Parse*, int);
void sqlite3ExprCacheAffinityChange(Parse*, int, int);
int sqlite3ExprWritableRegister(Parse*,int,int);
int sqlite3ExprCode(Parse*, Expr*, int);

View File

@ -13,7 +13,7 @@
# factoring constant expressions out of loops and for
# common subexpression eliminations.
#
# $Id: cse.test,v 1.3 2008/04/01 12:24:11 drh Exp $
# $Id: cse.test,v 1.4 2008/04/01 15:06:34 drh Exp $
#
set testdir [file dirname $argv0]
@ -70,13 +70,40 @@ do_test cse-1.9 {
}
} {0 -12 1 11 0 -22 1 21}
do_test cse-1.10 {
explain {
SELECT CAST(b AS integer), typeof(b), CAST(b AS text), typeof(b) FROM t1
}
execsql {
SELECT CAST(b AS integer), typeof(b), CAST(b AS text), typeof(b) FROM t1
}
} {11 integer 11 integer 21 integer 21 integer}
do_test cse-1.11 {
execsql {
SELECT *,* FROM t1 WHERE a=2
UNION ALL
SELECT *,* FROM t1 WHERE a=1
}
} {2 21 22 23 24 25 2 21 22 23 24 25 1 11 12 13 14 15 1 11 12 13 14 15}
do_test cse-1.12 {
execsql {
SELECT coalesce(b,c,d,e), a, b, c, d, e FROM t1 WHERE a=2
UNION ALL
SELECT coalesce(e,d,c,b), e, d, c, b, a FROM t1 WHERE a=1
}
} {21 2 21 22 23 24 14 14 13 12 11 1}
do_test cse-1.13 {
explain {
SELECT upper(b), typeof(b), b FROM t1
}
execsql {
SELECT upper(b), typeof(b), b FROM t1
}
} {11 integer 11 21 integer 21}
do_test cse-1.14 {
explain {
SELECT b, typeof(b), upper(b), typeof(b), b FROM t1
}
execsql {
SELECT b, typeof(b), upper(b), typeof(b), b FROM t1
}
} {11 integer 11 integer 11 21 integer 21 integer 21}
# Overflow the column cache. Create queries involving more and more
# columns until the cache overflows. Verify correct operation throughout.